lbry-desktop/ui/component/channelThumbnail/view.jsx

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// @flow
import React from 'react';
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import { parseURI } from 'lbry-redux';
import classnames from 'classnames';
import Gerbil from './gerbil.png';
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import FreezeframeWrapper from 'component/fileThumbnail/FreezeframeWrapper';
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type Props = {
thumbnail: ?string,
uri: ?string,
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className?: string,
thumbnailPreview: ?string,
obscure?: boolean,
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small?: boolean,
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allowGifs?: boolean,
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claim: ?ChannelClaim,
doResolveUri: string => void,
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isResolving: boolean,
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};
function ChannelThumbnail(props: Props) {
const {
thumbnail: rawThumbnail,
uri,
className,
thumbnailPreview: rawThumbnailPreview,
obscure,
small = false,
allowGifs = false,
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claim,
doResolveUri,
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isResolving,
} = props;
const [thumbError, setThumbError] = React.useState(false);
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const shouldResolve = claim === undefined;
const thumbnail = rawThumbnail && rawThumbnail.trim().replace(/^http:\/\//i, 'https://');
const thumbnailPreview = rawThumbnailPreview && rawThumbnailPreview.trim().replace(/^http:\/\//i, 'https://');
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const channelThumbnail = thumbnail || thumbnailPreview;
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const showThumb = (!obscure && !!thumbnail) || thumbnailPreview;
// Generate a random color class based on the first letter of the channel name
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const { channelName } = parseURI(uri);
let initializer;
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let colorClassName;
if (channelName) {
initializer = channelName.charCodeAt(0) - 65; // will be between 0 and 57
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colorClassName = `channel-thumbnail__default--${Math.abs(initializer % 4)}`;
} else {
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colorClassName = `channel-thumbnail__default--4`;
}
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React.useEffect(() => {
if (shouldResolve && uri) {
doResolveUri(uri);
}
}, [doResolveUri, shouldResolve, uri]);
if (channelThumbnail && channelThumbnail.endsWith('gif') && !allowGifs) {
return <FreezeframeWrapper src={channelThumbnail} className="channel-thumbnail" />;
}
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return (
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<div
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className={classnames('channel-thumbnail', className, {
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[colorClassName]: !showThumb,
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'channel-thumbnail--small': small,
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'channel-thumbnail--resolving': isResolving,
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})}
>
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{!showThumb && (
<img
alt={__('Channel profile picture')}
className="channel-thumbnail__default"
src={thumbnailPreview || Gerbil}
/>
)}
{showThumb && (
<img
alt={__('Channel profile picture')}
className="channel-thumbnail__custom"
src={!thumbError ? thumbnailPreview || thumbnail : Gerbil}
onError={() => setThumbError(true)} // if thumb fails (including due to https replace, show gerbil.
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/>
)}
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</div>
);
}
export default ChannelThumbnail;